Guake Icon does not show up in Unity launcher

[T_W]

$ lsb_release -rd
Description: Ubuntu 12.04 LTS
Release: 12.04

$ apt-cache policy guake
guake:
  Installed: 0.4.2-7
  Candidate: 0.4.2-7
  Version table:
 *** 0.4.2-7 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/universe i386 Packages
        100 /var/lib/dpkg/status

The guake icon does not show up in the Unity launcher when guake started automatically as "Startup Application".

See attached screenshot.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: guake 0.4.2-7
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
Uname: Linux 3.2.0-25-generic-pae i686
NonfreeKernelModules: nvidia wl
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
Date: Tue Jun 26 18:03:58 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: guake
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.